Sony promises that its on-sensor, phase-detection AF system will dramatically improve autofocus, for both video and still photos. New to the table is AF-A mode, which allows the camera to switch from AF-S and AF-C mode if needed.

It can record up to 29 minutes of video in one clip, and its built-in mic records in stereo.

All this, and it's still small enough to fit in your pocket, at only 4 by 2.3 by 1.6 inches, and with the battery and memory card, weighing just under 11 ounces.

At nearly $1,000, it's not cheap, but if you're looking for something incredibly powerful without needing a separate camera bag or needing to lug around an external lens, it's worth a look. Pre-order begins Monday for an anticipated late-October shipping date.

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